import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import 'BottomNavigationPage.dart';
import 'ThemePreference.dart';

void main() {
  runApp(const MyApp());
}

class ThemeProvider extends ChangeNotifier {
  final ThemePreference themePreference = ThemePreference();

  bool _isDarkMode;

  ThemeProvider(this._isDarkMode);

  bool get isDarkMode => _isDarkMode;

  void toggleTheme() {
    _isDarkMode = !_isDarkMode;
    themePreference.setDarkTheme(_isDarkMode); // Tema tercihini güncelle
    notifyListeners();
  }
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return FutureBuilder<bool>(
      future: ThemePreference().getDarkTheme(),
      builder: (context, snapshot) {
        if (snapshot.connectionState == ConnectionState.waiting) {
          return CircularProgressIndicator(); // Tercihler yüklenirken bekleme göster
        } else {
          bool isDarkMode = snapshot.data!;
          return ChangeNotifierProvider(
            create: (context) => ThemeProvider(isDarkMode),
            child: Consumer<ThemeProvider>(
              builder: (context, themeProvider, child) {
                return MaterialApp(
                  title: 'NurBey Kuyumculuk',
                  debugShowCheckedModeBanner: false,
                  theme: themeProvider.isDarkMode ? ThemeData.dark() : ThemeData.light(),
                  home: BottomNavigationPage(),
                );
              },
            ),
          );
        }
      },
    );
  }
}

import 'package:shared_preferences/shared_preferences.dart';

class ThemePreference {
  static const String key = 'theme_preference';

  Future<void> setDarkTheme(bool value) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    prefs.setBool(key, value);
  }

  Future<bool> getDarkTheme() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.getBool(key) ?? true; // Varsayılan olarak karanlık temayı kullan
  }
}

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import 'main.dart';

class ThemeSwitchButton extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Consumer<ThemeProvider>(
      builder: (context, themeProvider, child) {
        return IconButton(
          icon: Icon(
            themeProvider.isDarkMode ? Icons.light_mode : Icons.dark_mode,
            color: Colors.white,
          ),
          onPressed: () {
            themeProvider.toggleTheme();
          },
        );
      },
    );
  }
}

appBar: AppBar(
  actions: [
    ThemeSwitchButton(),
  ],
),

@override
Widget build(BuildContext context) {
  ThemeProvider themeProvider = Provider.of<ThemeProvider>(context);

Container(
  color:   themeProvider.isDarkMode ? Colors.black : Colors.white,

bool isDarkMode = Theme.of(context).brightness == Brightness.dark;